bug #1041 [Agent] Fix type of Toolbox::$tools (lyrixx)

This PR was merged into the main branch.

Discussion
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[Agent] Fix type of `Toolbox::$tools`

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| Docs?         | no
| Issues        |
| License       | MIT

see #1010 (comment)

Commits
-------

0a90585 [Agent] Fix type of Toolbox::$tools

Author: OskarStark

src/agent/src/Toolbox/Toolbox.php

@@ -34,7 +34,7 @@ final class Toolbox implements ToolboxInterface
     /**
      * List of executable tools.
      *
-     * @var list<mixed>
+     * @var list<object>
      */
     private readonly array $tools;
 
@@ -46,7 +46,7 @@ final class Toolbox implements ToolboxInterface
     private array $map;
 
     /**
-     * @param iterable<mixed> $tools
+     * @param iterable<object> $tools
      */
     public function __construct(
         iterable $tools,